We are the Mindware Optical Tag Detacher. Indian Barcode uses piezoelectrics to generate sound in the liquid, resulting in an index of refraction profile that behaves like a simple aspheric lens element. However, unlike many static devices that rely on the deformation of a surface or interface, the TAG Lens is more properly thought of as a tunable GRIN device that does not require any redistribution of liquid to change its optical properties. Therefore the TAG Lens can scan over a complete range of focal lengths in only microseconds, orders of magnitude faster than other liquid lenses on the market.
